“Wagner in Sudan: What have Russian mercenaries been up to?”. BBC News. (2023年4月24日). https://www.bbc.com/news/world-africa-65328165. "Its founder, Yevgeny Prighozin - who has close links to President Vladimir Putin - has said that "not a single Wagner PMC [private military company] fighter has been present in Sudan" for over two years. We've found no evidence that Russian mercenaries are currently inside the country. But there is evidence of Wagner's previous activities in Sudan..."
